389619770

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{397}}^1$

素因数の和:695

約数の個数: 64

約数和(自身を含む): 779901696

約数和(自身を除く): 390281926

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 251, 391, 397, 502, 782, 794, 1255, 1955, 1985, 2510, 3910, 3970, 4267, 5773, 6749, 8534, 9131, 11546, 13498, 18262, 21335, 28865, 33745, 42670, 45655, 57730, 67490, 91310, 98141, 99647, 155227, 196282, 199294, 310454, 490705, 498235, 776135, 981410, 996470, 1552270, 1693999, 2291881, 3387998, 4583762, 8469995, 11459405, 16939990, 22918810, 38961977, 77923954, 194809885, 389619770]

約数ペア:

[(1, 389619770), (2, 194809885), (5, 77923954), (10, 38961977), (17, 22918810), (23, 16939990), (34, 11459405), (46, 8469995), (85, 4583762), (115, 3387998), (170, 2291881), (230, 1693999), (251, 1552270), (391, 996470), (397, 981410), (502, 776135), (782, 498235), (794, 490705), (1255, 310454), (1955, 199294), (1985, 196282), (2510, 155227), (3910, 99647), (3970, 98141), (4267, 91310), (5773, 67490), (6749, 57730), (8534, 45655), (9131, 42670), (11546, 33745), (13498, 28865), (18262, 21335)]